120 lines
4.5 KiB
Python
Executable File
120 lines
4.5 KiB
Python
Executable File
# Copyright 2013 IBM Corp
|
|
#
|
|
# Author: Tong Li <litong01@us.ibm.com>
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
# not use this file except in compliance with the License. You may obtain
|
|
# a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
# License for the specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
import json
|
|
|
|
from oslo_config import cfg
|
|
import requests
|
|
|
|
from ceilometer import dispatcher
|
|
from ceilometer.i18n import _
|
|
from ceilometer.openstack.common import log
|
|
from ceilometer.publisher import utils as publisher_utils
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
http_dispatcher_opts = [
|
|
cfg.StrOpt('target',
|
|
default='',
|
|
help='The target where the http request will be sent to. '
|
|
'If this is not set, no data will be posted. For '
|
|
'example: target = http://hostname:1234/path'),
|
|
cfg.BoolOpt('cadf_only',
|
|
default=False,
|
|
help='The flag which indicates if only cadf message should '
|
|
'be posted. If false, all meters will be posted.'),
|
|
cfg.IntOpt('timeout',
|
|
default=5,
|
|
help='The max time in second to wait for a request to '
|
|
'timeout.'),
|
|
]
|
|
|
|
cfg.CONF.register_opts(http_dispatcher_opts, group="dispatcher_http")
|
|
|
|
|
|
class HttpDispatcher(dispatcher.Base):
|
|
"""Dispatcher class for posting metering data into a http target.
|
|
|
|
To enable this dispatcher, the following option needs to be present in
|
|
ceilometer.conf file
|
|
|
|
dispatchers = http
|
|
|
|
Dispatcher specific options can be added as follows:
|
|
[dispatcher_http]
|
|
target = www.example.com
|
|
cadf_only = true
|
|
timeout = 2
|
|
"""
|
|
def __init__(self, conf):
|
|
super(HttpDispatcher, self).__init__(conf)
|
|
self.headers = {'Content-type': 'application/json'}
|
|
self.timeout = self.conf.dispatcher_http.timeout
|
|
self.target = self.conf.dispatcher_http.target
|
|
self.cadf_only = self.conf.dispatcher_http.cadf_only
|
|
|
|
def record_metering_data(self, data):
|
|
if self.target == '':
|
|
# if the target was not set, do not do anything
|
|
LOG.error(_('Dispatcher target was not set, no meter will '
|
|
'be posted. Set the target in the ceilometer.conf '
|
|
'file'))
|
|
return
|
|
|
|
# We may have receive only one counter on the wire
|
|
if not isinstance(data, list):
|
|
data = [data]
|
|
|
|
for meter in data:
|
|
LOG.debug(_(
|
|
'metering data %(counter_name)s '
|
|
'for %(resource_id)s @ %(timestamp)s: %(counter_volume)s')
|
|
% ({'counter_name': meter['counter_name'],
|
|
'resource_id': meter['resource_id'],
|
|
'timestamp': meter.get('timestamp', 'NO TIMESTAMP'),
|
|
'counter_volume': meter['counter_volume']}))
|
|
if publisher_utils.verify_signature(
|
|
meter,
|
|
self.conf.publisher.metering_secret):
|
|
try:
|
|
if self.cadf_only:
|
|
# Only cadf messages are being wanted.
|
|
req_data = meter.get('resource_metadata',
|
|
{}).get('request')
|
|
if req_data and 'CADF_EVENT' in req_data:
|
|
data = req_data['CADF_EVENT']
|
|
else:
|
|
continue
|
|
else:
|
|
# Every meter should be posted to the target
|
|
data = meter
|
|
res = requests.post(self.target,
|
|
data=json.dumps(data),
|
|
headers=self.headers,
|
|
timeout=self.timeout)
|
|
LOG.debug(_('Message posting finished with status code '
|
|
'%d.') % res.status_code)
|
|
except Exception as err:
|
|
LOG.exception(_('Failed to record metering data: %s'),
|
|
err)
|
|
else:
|
|
LOG.warning(_(
|
|
'message signature invalid, discarding message: %r'),
|
|
meter)
|
|
|
|
def record_events(self, events):
|
|
pass
|